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==Introduction==

==Introduction==

Plasma is the fluid portion of the blood in which the blood cells are suspended. Plasma in combination with the interstitial fluid makes up the extracellular body fluid compartment.

Plasma is the fluid portion of the blood in which the blood cells are suspended. Plasma in combination with the interstitial fluid makes up the extracellular body fluid compartment.

Blood plasma can be prepared following centrifugation of a fresh sample that has been placed in a sample pot containing anti-coagulant.

Blood plasma can be prepared following centrifugation of a fresh sample that has been placed in a sample pot containing anti-coagulant.

Whilst in the centrifuge the [[Erythrocytes|red blood cells]] separate and fall to the bottom leaving a layer of yellow plasma on top. The plasma can subsequently be drawn off.

Whilst in the centrifuge the [[Erythrocytes|red blood cells]] separate and fall to the bottom leaving a layer of yellow plasma on top. The plasma can subsequently be drawn off.

'''Blood plasma''' is to be distinguished from '''serum''' which is plasma without fibrinogen which is separated following the clotting process.

'''Blood plasma''' is to be distinguished from '''serum''' which is plasma without fibrinogen which is separated following the clotting process.

'''Hormones and Enzymes''' including cortisol and thyroxine are transported around the body in plasma bound to plasma proteins.

'''Hormones and Enzymes''' including cortisol and thyroxine are transported around the body in plasma bound to plasma proteins.

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[[Category:WikiBlood]]